Ice-machine.



H. D. Pow/NAIL. ICE MACHINE.

APPLICATION FILED FEB. 7. I9I3.

Patented Apn 25, 1916.

3 SIiEETS-SHEET I.

un NNUU un.. HHIIIIdwmN II. njP'ow-NAII.

ICE MACHINE.

. I APPLICATION FILED Fis. 7. IsIa. www I imma Apr. 25,1916.

' 3 `SHEETS-SHEET 3- UNITED,

. Ien-Mamme.

Cantomfm the county 'ofslStarkand'Stateviof Ohjio, ,haveI Improvements in i lcefMaehlne invented certainfnew "he allowing i especmenes "i My invention relates toy impro features of my invention as N. 597,746, filed December i1?, 1910.' one of itsobjects is toprovide lan lmproved oo nvstruction and arrangement ofthe brine ytank and: ice molds adapted to the production of "ice from raw Water.,

Another object'is to nrovide thev conl.

' Venientfdetacliment andk removalofdefeej means; to seal the ice tails of form, combination'fand arrangement,

-all 'ofwhich will befully set deseriptionlogi. the accompanying'drawings; iniwhicli'z Figure` Speeialtion ofivLettersjia t ent.

i ,molaspreflabiy @emp i a -citizen' of he United States, residingfat?ff'bebrine vement/s i ice 'machined and" particularly tov certain.' originally4 'sety forth. andclaimed inmy'application Serial place-to avoid f molds to metal .containers vertio ily arrangedwitbi toms of the brine tfnkfs, and tbe' lower edges*` ofthe sidewalls' ofi/ the ice molds extendV down fto 'andhpreferably rest upon gaskets Nfon tbe'bottom of "the-brine tanks y lower edges oi' the ice moldsv are' preferably either turnedinwardly '5to form a ledge Z) lby means-fof whichv the *ice molds may be "tank vbottoins as iiiustrated illustrated Figs, @and 3g tta'ehed -all around to the clamped to the inFig; 4,' or as angleflrons 5 area y lower edge ofthe `Vside l walls/ of tbe ice molds, which r`angle irons project inwardly troinysaid, SideW'allsZand enable tbe ice' f f be clamped firmly Lbut detachably'o t the`brine tankbottoms by means of bolts.

'Gand nuts 7, saidbolts and'nuts being prefera'blyjofj brass, OnsherardiZed'to prevent forth in the' ,coijrosion,

and to enable 'the bolts and nuts to readily detached;

l4 isa` plan vieni',:ofla'ylurality .Access to said bolts is badith'rougli-thefopen- 'I 'brine tank'k units with? their'k contained: iee'iings 2in tbe'fbottomsof the brine tanks'.

." bottoms .o i ytliefbrine.tanks to tlie .moldsand, with the. lids removed Fig'.v

rig.- 1.. yrige -icati on;

. ``.\\'bicl1 n. rai' be. `moled directly 'said brine` tanks from a bottoms oftheln.-

an enla igedfrertica'l 'secti on onD-ine ai 'ai Fig, L isja similaryiew illustrating va`m odi- The accompanying iraniings-. the preferred mbodiment, [of my inventa on trseparatey brink tank Vnnitsj to "n represent f cooling and serf'ing `the bottom of V the Y mol .if'entfleakage man readily so as towafiford access become `brine tanks.'

' brine `tank to the'bottoms` oiy In iiractice the 'brine tanks are seated in.r lor pipe connections through 'the nnnelevated position above they door 10 ,as

The lower `pplftion 'of the' space in" the similarmaterial if the ice molds,

',saidi ypitch becomingV P tio ro 1de nonfo in y tornai tov modera ioldi, (nl Vnnol ls to previ 'tlnf'olzlgh the openingsin the bottoms ofthe the ice molds;

for .instanee upon ypiers l1 Sand Tdnars. lf2,y to the bottom of the Fresh or, raw` Water is supplied;

piace 1 to; all. fjtlie. ice molds f a` given. brin@ tank.

them. Witli newv ones tosave?time` n' avoid f`atflone timer Vthro'inggh eonplingmenib discarding ythe entire tank'nni't,A

' Eetentejdnpne, reife.

. Application tiled February 7,1 9 13. Serie1No:74G,8' 25.as" f reotangiilarsneet 'V Tiefbau-0m .trofee ipe meras "are "prf- 'es erably set up some distance above thebot-r The vo' The gaskets-N. my

)rine tank "Surrounding the ioevrnolds. `is 3' isvafpersbeetwe View .partlylled in with pitclir-or a in section of one ofI the icemolds detached.` E' 'in Ia' lieated'or f se1'nirn'icondition vup Y to the-level of tbe bottoms 1:. i

ractieally soliden" i togseai alltlieijointsnt 'T 'Cl/andtanksftolpie y LSTMESPMENT# H 7 iinNnY nroWNAmL, or ojn'rongomo.

The freshwaterfreezmr inthe'conduitsleadinfA ro s" valve controlled supply pipe l5 and freezing in all the ice molds of one brine `tank is commenced at one time by circulating cold brine through said tank. A series of 5 branch pipes 16 connected to a valve controlled main 1T enables a limited proportion of the raw water charged with'impurities to How from the ice molds through the main 17 to a settling reservoir where the impurities settle out, and the raw water returned by way of pipes 14 and 15 to the ice molds. A limited quantity of air underpressure is t supplied to the respective ice molds through branch pipes l5 allowed to bubble up through the raw water in the ice molds and to escape at the top of the ice molds, this air serves to agitate the water in the ice molds to free the face of the forming ice from air bubbles, salts, sediment, or other impurities, separated out during the freezing process, to produce clear and pure ice, and also to promote a circulation of raw water to and from the ice molds through thesettling reservoir 19. W'hen the ice molds are nearly filled Awith ice all the water remaining therein is drained olf through a waste cock 20 toyremove all impurities from the ice molds, and the space refilled with clear `waterand the a'ir circulation stopped and the brine circulation continued until all thewater in the ice molds except a small fraction 4directly over the conduits at the bottom ,of the/ice mold has become solid, whereupon the/cil`- culation of cold brine is discontinued and the cold brine in the brine tank is/eplaced with warm brine which serves to loosen the ice from the walls of the ice molds to permit it to be removed, whereupon all the 4o ice from one brine tank is removed and the molds again filled with raw water ready to repeat the freezing operation. i Should any of the ice molds'become injured or defective during the warm or active season, I preferably disconnect all the g branch conduits leading thereto and cap the same leaving said defective ice mold in dormant state until the cold or dormant season l when it can be conveniently and readily re- 5o placed with a new one. In order to replace a defective ice mold the water is withdrawn :from the defective mold and ,the brine drained from the tank in which it is seated.

- Then the bolts 6 and nuts 7 of said defective mold are removed and the walls at the lower ,part of the ice mold are heated by means of a blow torch or similar means which loosens the ice mold from the pitch E and permits the mold to be withdrawn vertically and a S0 'new ice mold substituted, which is bolted in place upon the tank bottom and then its lower side walls heated whereupon the pitch adheres'thereto forming a sealing joint. By providing inwardly projecting means to 't clamp 'the ice molds to the bottoms of the 18 and mains not shown, and

brine tanks the ice molds ma) be detached and replaced without to any extent disturb-- in the pitch or sealing material. If desired valves may be em loyed in the branch conduits to enable efective ice molds to be c'utout of circuit until such time ,as it may `be convenient to re lace them, but due to the cost of a multip icity of valves and the liability of leaka e therethrough, I prefer to detach and ca the branch conduits of defective Vmolds until su'ch time' as they can be conveniently replaced.

The-apparatus herein illustrated and dei scribed is capable of considerable modification without departing from the principle l of my invention. l

Having described my invention what I claim is: 1. An apparatus for making artificial ice comprising va refrigerating tank having an 85. opening inthe bottom thereof, a container for the water to be frozen, having its bottom exposed to the atmosphere through said opening in the tank bottom, said container having a marginal flange at the bottom thereof extending around said opening,

` means to detachably hold said flange in contact with the tank bottom, a sealing medium forming a water tight joint between said container and `tank bottom and means to circulate a refrigerant through said tank.

An apparatus for producing artificial ice, comprising a brine tank having an opening in the bottom thereof, a container for the water to be frozen detachably fitted over said opening in the tank bottom, said container having an inwardly turnedfiange below its bottom to engage and seat upon the tank bottom around said opening, and means to clamp said inwardly turned flange to said `tank bottom.

3. An apparatus for producing, artificial ice, comprising a brine tank having an opening in the bottom thereof, a container forA the water to be frozen detachablyjitted over said opening in the tank bottom,-said container having an inwardly turned iiange below its bottom to engage and seat upon the t tank bottom, and bolts passing through said flange and tank bottom to clamp said con- 115 taincr in place.

LfAn apparatus for producing artificial ice, comprising a refrigerating tank having an opening in the bottom thereof, a. container for the water to be frozen detachably tted over said opening in the tank bottom, said container having an inwardly 'turned fiange at its bottom to engage and seat upon the tank bottom, means around the bottom of the container to prevent leakage thereunder, and means to detachably clamp the container down upon the bottom of the refrigerating'tank. y

' 5. An apparatus for producing artificial 1ce,compr1s1ng a refrigerating tank having 1 anopening in the bottom thereof, a. con tainer for the waterto be treten detachably j fitted over said opening in the tankbottom, said container having` an inwardly turnedv flange at its bottom to 'engage and yseat upon the tank bottom', a strata of sealing mate rial capable of being rendered plastielby the application of heat surrounding the bottom of said container to prevent leakage thereunder, and means to detachably clamp 'said container down upon the bottom of the refrigerating tank. y

6). An artificial ice producing apparatus comprising a tank having an opening in its bottom, an ice mold seatedover said` opening and detachablysecured tothe bottom of said tank, and :2t-coupling member attached on the outside to the bottom of said ice mold to conduct water and air vto said ice mold through thefbottom of said tank.

7. An artificial ice producing apparatus comprising a brine tank, an ice mold having inwardly turned flanges seating against the bottom of thetank, means to detachably Limp if Witnesses.

Asecure the ice mold to thegtank, a coupling member connected on the outside to the bottom ofthe ice mold to introduce water and airto said ice mold, and a body of sealing medium occupying the lower portion of the tank andsuri'ounding the lower portion of theice mold to seal the joints at the bottom :of said tank and ice mold.`

, 8. Anartiicial ice producing apparatus comprising a brine` tank, a metal Jrame 'mounted above the door and supporting said tank in an elevated position above the floor, an ice mold located in and detachably connected to the rbottom of said tank,` a couln testimony whereof have aikedgmy signature in the presence 'of two witnesses.

' HENRY D. vPOWNALL.

DAVID B.' Dar, ERNEST J. Donna.

-pIing member attached on the outside to 

